Adding testing files

openfpm_devices

openfpm_io

openfpm_vcluster

src/Decomposition/CartDecomposition.hpp

src/Decomposition/CartDecomposition_ext.hpp

src/Decomposition/Distribution/Distribution_unit_tests.hpp

src/Decomposition/Distribution/MetisDistribution.hpp

src/Decomposition/Distribution/ParMetisDistribution.hpp

...ribution/test_data/0_vtk_parmetis_distribution_0_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_10_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_20_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_30_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_40_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_50_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_60_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_70_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_80_test.vtk

...ibution/test_data/0_vtk_parmetis_distribution_90_test.vtk

...Distribution/test_data/dec_optimizer_disc_graph0_test.vtk

...Distribution/test_data/dec_optimizer_disc_graph1_test.vtk